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Top Forums Shell Programming and Scripting wait command - cat it wait for not-chile process? Post 302209287 by alex_5161 on Thursday 26th of June 2008 12:46:16 PM
Old 06-26-2008
wait command - cat it wait for not-chile process?

Did not use 'wait' yet.
How I understand by now the wait works only for child processes, started background.

Is there any other way to watch completion of any, not related process (at least, a process, owned by the same user?)

I need to start a background process, witch will be waiting for completion of the parent script.

Thank you
Alex
 

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wait(1) 						      General Commands Manual							   wait(1)

NAME
wait - await process completion SYNOPSIS
[pid] DESCRIPTION
If no argument is specified, waits until all processes (started with of the current shell have completed, and reports on abnormal termina- tions. If a numeric argument pid is given and is the process ID of a background process, waits until that process has completed. Other- wise, if pid is not a background process, exits without waiting for any processes to complete. Because the system call must be executed in the parent process, the shell itself executes without creating a new process (see wait(2)). Command-Line Arguments supports the following command line arguments: The unsigned decimal integer process ID of a command, whose termination is to wait for. WARNINGS
Some processes in a 2-or-more-stage pipeline may not be children of the shell, and thus cannot be waited for. SEE ALSO
csh(1), ksh(1), sh-posix(1), sh(1), wait(2). STANDARDS CONFORMANCE
wait(1)
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